Improvement in magazine-stoves



2 Sheets-Sheet ll W. DOYLE. Magazine-Stove.

PaentedMay 25,1875.

272 VWZ- 2,

Illllll 2 Sheets--Sheet 2.

W. DOYL'E. Magazine-Stove.

Nol53'583- A Patented May 25,1875.

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UNITED STATES PATENT OFFICE.

WILLIAM DOYLE, OF ALBANY, NEW YORK.

IMPROVEMENT IN MAGAZINE-STOVES.

Specification forming part of Letters Patent No. l 63,583, dated May 25, 1875; application filed December 16,187.4.

To all 'whom it may concern Be it known that I, WILLIAM DoYLE, of the city and county of Albany, State of New York, have invented certain Improvements in Soft-Coal Self-Feeding Stoves; and I do hereby declare that the following is a description thereof, reference being had to the accompanying drawings, in two sheets, forming a part of this specification, in which- Figure 1 is a side elevation of the section of the stove below the combustion chamber, with a part of the outer wall broken away, illustrating parts of this invention. Fig. 2 is a sectional elevation of the stove, taken from front to rear. Fig. 3 is a sectional elevation, taken from side to side. Fig. 4 is a perspective view of the re-pot and its immediate adjuncts. Fig. 5 is a plan view of the base-fines of the stove. Fig. is a horizontal sectional view, taken at line No. l in Figs. 2 and 3. Fig. 7 is a horizontal sectional view taken at lines No. 2 in Figs. 2 and 3. Fig. 8 is a hori-v zontal sectional view, taken at lines No.3 in Figs. 2 and 3. Fig. 9 is a horizontal sectional view, taken at line No. 4. in Figs. 2 and 3.

My invention relates to a soit-coal burner and consists in the several parts hereinafter described, constructed and combined in such a manner as to render the stove capable of operating with soft coal in such a manner that the gases evolved may be consumed and be made by their combustion to effect a powerful heating of the stove in all its lower parts. i

To enable others skilled in the art to make and use my invention, I will proceed t0 describe it in reference to the drawings and letters of reference marked thereon, the same letters indicating like parts.

In the drawings, A represents the base section of a stove. B is the fire-pot section. C is the mica section surroundin g the combustionchamber. l) is the top section. E F is the fire-pot. G is the grate. H is the fuel-reservoir.

In my invention I form the fire-pot with two sections-the lower section E, in which the fuel is burned, and the upper section F, in which the fuel is coked, as shown in Figs. 2, 3, and 4. The said sections may be cast solid with each other, or be united together at the rear,

with the space s between the lower end of the upper section and the upper end of the lower section, as shown. a is a vertical plate supporting the lower section of the lire-pot from the bottom plate b. b' is an annular plate extending from the top margin of the lower section E of the fire-pot to the outer wall or casing B, to cut off all communication of the space outside the said lower section of lirepot, with the space outside the upper' section F. Around the upper and coking section F of the tire-pot, and forward of the. fine-strips c c', is the llame-space h,lcommunicating from the space s, between the two sections of the fire-pot, to the combustion-chamber J above. Short descending iuesff lead from the cornbustiou-chaniber to the more extensive descending iiues j" f', located below the upper margin of the lower section of the lire-pot, and between the flue-strips c and c and the sides of the ash-chamber door. The said ilues f and f are each the continuation of the other, and discharge into the flues I in the base of the stove.

The ascending iiue d is provided with the damper d2, which damper, when turned, permits the drafts to be direct to the exit d1 through the opening e. When the said damper is closed, the passage of the hot gases will be Vfrom the combustion-chamber, through the openings e c', into the iiues f f, and into the base-fines, to return therefrom through the ascending flue d. the sides of the base, and the central return-flue I', are preferably made as in a former invention, for which Letters Patent have been issued to myself, in which is employed the plates g g', to throw the heated gases toward the side surfaces of the base, to effeet a heating ofthe same, while the opposite sides of the plates g g may themselves be heated to stimulate the actions of an adjoining flue, of which the opposite side of the said plates forms a part.

As before stated, around the coking section F of the fire-pot E F is the llame-space h, leading from the space s to the combustionchamber J, through which the hot gases evolved in the lower section E escape to the said combustion-chamber as they pass out through the space s. An annular flue, K, ex

The base-dues I at tending from the liuc-strip c to c', as shown in Fig. 4, eneircles the outer surface of the wall of the section F. rlhe lower edge of the said annular ue is made with an opening, o, which communicates with the name-spaces 7L and s', which opening c extends from fluestrip c to c.

lerforations may be employed in lieu of the continuous opening yv, it' desired. One or more air tubes or conduits, L, lead the air of the room, through the casing B and flame-space ZL, into the annular ilue, to be heated for discharge through the space c into the said name-space Zt, to be there mingled with thehot gases evolved from the lower section of the tire-pot, and drawn through the space s into the said space lo, and so canse their perfect combustion. ,Set into the wall or casing B, surroundin the hre-pot, are the mica lights B', Figs. 1, 2, and 3, which mica lights are intended to permit light and heat to radiate out into the room, as they are thrown oft' from the glowing coals in the space s, and from the ila-me from the ignited gases burning in the name-space ZZ opposite the said mica lights. rlhe fuel-reservoir His comprised by the cylinders j and j. rlhe cylinder j is provided in its upper portion with the several 1 erforations x w x, and has its lower end made bell-shaped, or with alateral spreading of its lower end. The outer cylinderj is made tight in its walls, and its lower end extends below the lower end ofthe inner cylinder. Between the said two cylinders is the chamber Z, which communicates with the interior of the reservoir H through the ports or perforations x rlhe said chamber Z also communicates with the combustion-chamber J through the narrow annular space e', between the outer cylinder j and the lower spreading end ofthe inner cylinder j. Several air pipes or conduits, a n, lead from the outside of the stove to the chamber Z, surrounding the inner cylinder of the reservoir, and are intended to permit a supply of air to the said chamber, to mingle with the gases escaping from theinterior of the reservoir, through the perforations .c into the chamber Z.

It is intended that by the draft ofthe stove, when in operation, the gases generated within the reservoir will be drawn from the same through the openings .fr into' the chamber Z, while at the same time fresh air will be drawn from the room without through the tubes o?, n into the said chamber in a continuous manner, and bot-h the air thus drawn in and also the gas drawn from the reservoir will be drawn down and discharged through the space z into the combustion-chamber J below, to mingle with the hot gases evolved from the fuel being coked in the upper section of the fire-pot, and those passing up through the flame-space h from the lower section of fire-pot thereby cause their combustion.

It is evident that, by reason of the reservoir being constructed with two cylinders, with an air-space between, there will be no excessive generation of gas from the coking of the coals within the said reservoir, as is had in reservoirs formed with a single wall, where the coals may become highly heated.

l It is also evident that as the air and gases are drawn downward in the chamber Z they will be gradually heated, and when discharged through the space e into the combustion-chamber J that they may become highly heated at the time of their discharge, and so much so as not to damp the fire, as is the case where cold air is discharged over the top surface of the fire.

It is intended by the improvements in this VYinvention to consume the fuel in the lower seetion of the fire-pot and coke the fuel in the upper section, while the fuel in the discharge end of thereservoir may be at a comparatively low temperature or state of ignition, so that the fuel may not become fused and adhere to the said discharge end to clog the same, or prevent a continuous flow to the lire-pot.

It is also intended that the draft of the stove shall draw the air into the annular flue K around the upper section, and cause a discharge of the same into the ilamespace h, while at the same time the gases evolved from the fuel in the lower section of the f1re shall be drawn through the space s, so that a perfect combustion ot' the gases may be had as they escape from the said lower section.

It is evident that, as the gases evolved from the top-surface of the upper section are drawn by the draft toward the sides of the stove, they will be mingled with the llame or gases in combustion and drawn upward through the flame-space ZZ to the combustion-chamber in their passage to the flues ff, and by the great heat of the same be consumed.

By the improvements in this invention it may be seen that all the gases evolved or generated may be consumed as they maybe supplied at different points with highly-heated air brought in contact with an intense llame, as before described.

The rear ascending flue d, being located at the rear of the fire-pot, will become highly heated to stimulate the draft, and thereby cause a powerful draft to the air to be drawn into the flue K and the chamber Z, and also the gases generated in the different portions of the stove, so that a combustion of all the inflammable portions of the fuel may be had at different points in close proximity or impingement with the outer walls or casing of the stove, above the lower section of the firepot, while the resulting hot gases will be drawn along the sides of the stove, and thence into the base to highly heat the same, for warming the room at a low point, by the heat radiated from the several lower portions of the stove, and the illumination secured in the flame-space may be more powerful, as it is had from both ame and glowing coals, which cannot be had in those stoves having mica lights set opposite a space having live coals only.

Having described my invention, what I claim, and desire to secure by Letters Patent,

1. In a stove or heater, the combination of the sectional fire-pot, comprised by the cokng section F and fuel-burnin g section E,witl1 space s between, and the lower section provided with a grate, and its upper margin closing to the wall of the ash-chamber, with the name-space h leading from the upper margin of the lower section to the combustion-chamber J, substantially as and for the purpose set forth.

2. 'lhe combination, with the sectional irethe ilame passage or space h, whereby the stove may be rendered capable of warming a room from its lower parts by the united operations of the hot gases circulating through the said ues and base, and the heat radiated from the flame in the name-passage through the mica lights, substantially in the manner set forth.

4. In a stove or heater, the chamber l, communicating with the interior of the fuel-reservoir, the outer air of the room, and the coinbustion chamber, in combination with the ame passage or space h, surrounding the upper portion of the fire-pot, and the descending fluesff, leading the hot gases laterally from the discharge end of the reservoir, whereby the mingled air and gas from the chamber l may be drawn in contact with the ame and hot gases from the ame passage or space h for their better combustion, substantially as and for the purpose set forth.

WILLIAM DOYLE. Witnesses:

EDWARD H. DoYLE, J AMES WRIGHT. 

